FOXBORO — The 2020 season hasn’t been a good one for Jarrett Stidham.The Patriots 2019 fourth-round pick looked like the potential replacement for Tom Brady when NFL free agency came and went. At that time, the only addition was veteran Brian Hoyer, who Stidham had beaten out for the backup job the summer before.As the offseason went on, it seemed like the Patriots were ready to roll into training camp with Stidham and Hoyer along with undrafted free agents Brian Lewerke and